In order to shorten the time for disaster recovery

a multi-channel recovery data flow parallel transmission and control（MRPTC）method was presented.First

the connections between the server to be recovered and the several standby servers were established

the difference comparison between the current damaged data and the original intact data（the backup data） was completed

the differences were obtained.Then the different parts of the differences were dynamically downloaded from the standby servers in the parallel mode

these parts were united locally

the whole data was finally obtained

and the fast disaster recovery of the data was achieved.The theoretical analysis and the experiment results show that the proposed method has the features of multi-point collaborative difference recovery

high recovery speed

full bandwidth utilization

and low network requirement.Therefore

this method is a new good approach of fast disaster recovery.